tp Share definition Flag means tiny penis (usually less than 4 inches), also refers to any one who goes to the high school Torrey Pines Chick 1: Im gonna go ask Frank out. Chick 2: Nah u shouldnt, I heard he has a TP. tp by B--rice May 4, 2008 0 0 Get merch Get the tp mug. Buy Now — $32.95 See more merch